Multiple Choice
What are the main products of the Krebs Cycle?
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8. Respiration
Krebs Cycle
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Where does the Krebs cycle occur within a eukaryotic cell?
A
Nucleus
B
Cytoplasm
C
Golgi apparatus
D
Mitochondrial matrix
Verified step by step guidance1
Understand the context of the Krebs cycle, also known as the citric acid cycle, which is a key metabolic pathway that generates energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins.
Recall that the Krebs cycle is part of cellular respiration, a process that occurs in eukaryotic cells to produce ATP, the energy currency of the cell.
Identify the location of cellular respiration processes: Glycolysis occurs in the cytoplasm, while the Krebs cycle and the electron transport chain occur in the mitochondria.
Focus on the structure of the mitochondria, which has two membranes: an outer membrane and a highly folded inner membrane. The space inside the inner membrane is called the mitochondrial matrix.
Conclude that the Krebs cycle takes place in the mitochondrial matrix, where the necessary enzymes and substrates are located to facilitate the cycle's reactions.
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